Is ki able to be visible without a third eye?

[Tom]

It is not necessary to intentionally work on the third eye. It is actually not a main chakra in the Buddhist system. Seeing energy is not particularly important and it is not a particularly high accomplishment.

[ss_majin_gohan]

Well, is ki able to be seen by a person who hasn't even tried to train or hasn't even worked on their third eye? I mean like if you have trained for a LOOOOOONG time?